/*
 * Inline Form Validation Engine 2.0 Beta, jQuery plugin
 *
 * Copyright(c) 2010, Cedric Dugas
 * http://www.position-absolute.com
 *
 * 2.0 Rewrite by Olivier Refalo
 * http://www.crionics.com
 *
 * Form validation engine allowing custom regex rules to be added.
 * Licensed under the MIT License
 */
(function($) {

	var methods = {

		/**
		 * Kind of the constructor, called before any action
		 * 
		 * @param {Map}
		 *            user options
		 */
		init : function(options) {
			var form = this;
			if (form.data('jqv') === undefined || form.data('jqv') == null) {
				methods._saveOptions(form, options);

				// bind all formError elements to close on click
				$(".formError").live("click", function() {
					$(this).fadeOut(150, function() {

						// remove prompt once invisible
						$(this).remove();
					});
				});
			}
		},
		/**
		 * Attachs jQuery.validationEngine to form.submit and field.blur events
		 * Takes an optional params: a list of options ie.
		 * jQuery("#formID1").validationEngine('attach', {promptPosition :
		 * "centerRight"});
		 */
		attach : function(userOptions) {
			var form = this;
			var options;

			if (userOptions)
				options = methods._saveOptions(form, userOptions);
			else
				options = form.data('jqv');

			if (!options.binded) {
				if (options.bindMethod == "bind") {
					// bind fields
					form.find("[class*=validate]:not([type=checkbox])").bind(
							options.validationEventTrigger,
							methods._onFieldEvent);
					form.find("[class*=validate][type=checkbox]").bind("click",
							methods._onFieldEvent);

					// bind form.submit
					form.bind("submit", methods._onSubmitEvent);
				} else if (options.bindMethod == "live") {
					// bind fields with LIVE (for persistant state)
					form.find("[class*=validate]:not([type=checkbox])").live(
							options.validationEventTrigger,
							methods._onFieldEvent);
					form.find("[class*=validate][type=checkbox]").live("click",
							methods._onFieldEvent);

					// bind form.submit
					form.live("submit", methods._onSubmitEvent);
				}

				options.binded = true;
			}

		},
		/**
		 * Unregisters any bindings that may point to jQuery.validaitonEngine
		 */
		detach : function() {
			var form = this;
			var options = form.data('jqv');
			if (options.binded) {

				// unbind fields
				form.find("[class*=validate]").not("[type=checkbox]").unbind(
						options.validationEventTrigger, methods._onFieldEvent);
				form.find("[class*=validate][type=checkbox]").unbind("click",
						methods._onFieldEvent);
				// unbind form.submit
				form.unbind("submit", methods.onAjaxFormComplete);

				// unbind live fields (kill)
				form.find("[class*=validate]").not("[type=checkbox]").die(
						options.validationEventTrigger, methods._onFieldEvent);
				form.find("[class*=validate][type=checkbox]").die("click",
						methods._onFieldEvent);
				// unbind form.submit
				form.die("submit", methods.onAjaxFormComplete);

				form.removeData('jqv');
			}
		},
		/**
		 * Validates the form fields, shows prompts accordingly. Note: There is
		 * no ajax form validation with this method, only field ajax validation
		 * are evaluated
		 * 
		 * @return true if the form validates, false if it fails
		 */
		validate : function() {
			return methods._validateFields(this);
		},
		/**
		 * Validates one field, shows prompt accordingly. Note: There is no ajax
		 * form validation with this method, only field ajax validation are
		 * evaluated
		 * 
		 * @return true if the form validates, false if it fails
		 */
		validateField : function(el) {
			var options = $(this).data('jqv');
			return methods._validateField($(el), options);
		},
		/**
		 * Validates the form fields, shows prompts accordingly. Note: this
		 * methods performs fields and form ajax validations(if setup)
		 * 
		 * @return true if the form validates, false if it fails, undefined if
		 *         ajax is used for form validation
		 */
		validateform : function() {
			return methods._onSubmitEvent(this);
		},
		/**
		 * Displays a prompt on a element. Note that the element needs an id!
		 * 
		 * @param {String}
		 *            promptText html text to display type
		 * @param {String}
		 *            type the type of bubble: 'pass' (green), 'load' (black)
		 *            anything else (red)
		 * @param {String}
		 *            possible values topLeft, topRight, bottomLeft,
		 *            centerRight, bottomRight
		 */
		showPrompt : function(promptText, type, promptPosition, showArrow) {

			var form = this.closest('form');
			var options = form.data('jqv');
			// No option, take default one
			if (!options)
				options = methods._saveOptions(this, options);
			if (promptPosition)
				options.promptPosition = promptPosition;
			options.showArrow = showArrow === true;

			methods._showPrompt(this, promptText, type, false, options);
		},
		/**
		 * Closes all error prompts on the page
		 */
		hidePrompt : function() {
			var promptClass = "." + methods._getClassName($(this).attr("id"))
					+ "formError"
			$(promptClass).fadeTo("fast", 0.3, function() {
				$(this).remove();
			});
		},
		/**
		 * Closes form error prompts, CAN be invidual
		 */
		hide : function() {
			if ($(this).is("form")) {
				var closingtag = "parentForm" + $(this).attr('id');
			} else {

				var closingtag = $(this).attr('id') + "formError"
			}
			$('.' + closingtag).fadeTo("fast", 0.3, function() {
				$(this).remove();
			});
		},
		/**
		 * Closes all error prompts on the page
		 */
		hideAll : function() {
			$('.formError').fadeTo("fast", 0.3, function() {
				$(this).remove();
			});
		},
		/**
		 * Typically called when user exists a field using tab or a mouse click,
		 * triggers a field validation
		 */
		_onFieldEvent : function() {
			var field = $(this);
			var form = field.closest('form');
			var options = form.data('jqv');
			// validate the current field
			methods._validateField(field, options);
		},
		/**
		 * Called when the form is submited, shows prompts accordingly
		 * 
		 * @param {jqObject}
		 *            form
		 * @return false if form submission needs to be cancelled
		 */
		_onSubmitEvent : function() {

			var form = $(this);

			// validate each field (- skip field ajax validation, no necessary
			// since we will perform an ajax form validation)
			var r = methods._validateFields(form, true);

			var options = form.data('jqv');
			// validate the form using AJAX
			if (r && options.ajaxFormValidation) {
				methods._validateFormWithAjax(form, options);
				return false;
			}

			if (options.onValidationComplete) {
				options.onValidationComplete(form, r);
				return false;
			}
			return r;
		},
		/**
		 * Return true if the ajax field validations passed so far
		 * 
		 * @param {Object}
		 *            options
		 * @return true, is all ajax validation passed so far (remember ajax is
		 *         async)
		 */
		_checkAjaxStatus : function(options) {
			var status = true;
			$.each(options.ajaxValidCache, function(key, value) {
				if (value === false) {
					status = false;
					// break the each
					return false;
				}
			});
			return status;
		},
		/**
		 * Validates form fields, shows prompts accordingly
		 * 
		 * @param {jqObject}
		 *            form
		 * @param {skipAjaxFieldValidation}
		 *            boolean - when set to true, ajax field validation is
		 *            skipped, typically used when the submit button is clicked
		 * 
		 * @return true if form is valid, false if not, undefined if ajax form
		 *         validation is done
		 */
		_validateFields : function(form, skipAjaxFieldValidation) {

			var options = form.data('jqv');

			// this variable is set to true if an error is found
			var errorFound = false;

			// first, evaluate status of non ajax fields
			form.find('[class*=validate]').not(':hidden').each(
					function() {
						var field = $(this);
						// fields being valiated though ajax are marked with
						// 'ajaxed',
						// skip them
						if (!field.hasClass("ajaxed"))
							errorFound |= methods._validateField(field,
									options, skipAjaxFieldValidation);
					});
			// second, check to see if all ajax calls completed ok
			errorFound |= !methods._checkAjaxStatus(options);

			// thrird, check status and scroll the container accordingly
			if (errorFound) {
				if (options.scroll) {

					// get the position of the first error, there should be at
					// least one, no need to check this
					// var destination =
					// form.find(".formError:not('.greenPopup'):first").offset().top;

					// look for the visually top prompt
					var destination = Number.MAX_VALUE;

					var lst = $(".formError:not('.greenPopup')");
					for ( var i = 0; i < lst.length; i++) {
						var d = $(lst[i]).offset().top;
						if (d < destination)
							destination = d;
					}

					if (!options.isOverflown)
						$("html:not(:animated),body:not(:animated)").animate({
							scrollTop : destination
						}, 1100);
					else {
						var overflowDIV = $(options.overflownDIV);
						var scrollContainerScroll = overflowDIV.scrollTop();
						var scrollContainerPos = -parseInt(overflowDIV.offset().top);

						destination += scrollContainerScroll
								+ scrollContainerPos - 5;
						var scrollContainer = $(options.overflownDIV
								+ ":not(:animated)");

						scrollContainer.animate({
							scrollTop : destination
						}, 1100);
					}
				}
				return false;
			}
			return true;
		},
		/**
		 * This method is called to perform an ajax form validation. During this
		 * process all the (field, value) pairs are sent to the server which
		 * returns a list of invalid fields or true
		 * 
		 * @param {jqObject}
		 *            form
		 * @param {Map}
		 *            options
		 */
		_validateFormWithAjax : function(form, options) {

			var data = form.serialize();

			$
					.ajax({
						type : "GET",
						url : form.attr("action"),
						cache : false,
						dataType : "json",
						data : data,
						form : form,
						methods : methods,
						options : options,
						beforeSend : function() {
							return options.onBeforeAjaxFormValidation(form,
									options);
						},
						error : function(data, transport) {
							methods._ajaxError(data, transport);
						},
						success : function(json) {

							if (json !== true) {

								// getting to this case doesn't necessary means
								// that the form is invalid
								// the server may return green or closing prompt
								// actions
								// this flag helps figuring it out
								var errorInForm = false;
								for ( var i = 0; i < json.length; i++) {
									var value = json[i];

									var errorFieldId = value[0];
									var errorField = $($("#" + errorFieldId)[0]);

									// make sure we found the element
									if (errorField.length == 1) {

										// promptText or selector
										var msg = value[2];

										if (value[1] === true) {

											if (msg == "")
												// if for some reason,
												// status==true and error="",
												// just close the prompt
												methods
														._closePrompt(errorField);
											else {
												// the field is valid, but we
												// are displaying a green prompt
												if (options.allrules[msg]) {
													var txt = options.allrules[msg].alertTextOk;
													if (txt)
														msg = txt;
												}
												methods._showPrompt(errorField,
														msg, "pass", false,
														options);
											}
										} else {
											// the field is invalid, show the
											// red error prompt
											errorInForm |= true;
											if (options.allrules[msg]) {
												var txt = options.allrules[msg].alertText;
												if (txt)
													msg = txt;
											}
											methods._showPrompt(errorField,
													msg, "", false, options);
										}
									}
								}
								options.onAjaxFormComplete(!errorInForm, form,
										json, options);
							} else
								options.onAjaxFormComplete(true, form, "",
										options);
						}
					});

		},
		/**
		 * Validates field, shows prompts accordingly
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            field's validation rules
		 * @param {Map}
		 *            user options
		 * @return true if field is valid
		 */
		_validateField : function(field, options, skipAjaxFieldValidation) {

			if (!field.attr("id"))
				$
						.error("jQueryValidate: an ID attribute is required for this field: "
								+ field.attr("name")
								+ " class:"
								+ field.attr("class"));

			var rulesParsing = field.attr('class');
			var getRules = /validate\[(.*)\]/.exec(rulesParsing);
			if (getRules === null)
				return false;
			var str = getRules[1];
			var rules = str.split(/\[|,|\]/);

			// true if we ran the ajax validation, tells the logic to stop
			// messing with prompts
			var isAjaxValidator = false;
			var fieldName = field.attr("name");
			var promptText = "";
			var required = false;
			options.isError = false;
			options.showArrow = true;
			optional = false;

			for ( var i = 0; i < rules.length; i++) {

				var errorMsg = undefined;
				switch (rules[i]) {

				case "optional":
					optional = true;
					break;
				case "required":
					required = true;
					errorMsg = methods._required(field, rules, i, options);
					break;
				case "custom":
					errorMsg = methods._customRegex(field, rules, i, options);
					break;
				case "ajax":
					if (skipAjaxFieldValidation === false) {
						// ajax has its own prompts handling technique
						methods._ajax(field, rules, i, options);
						isAjaxValidator = true;
					}
					break;
				case "minSize":
					errorMsg = methods._minSize(field, rules, i, options);
					break;
				case "maxSize":
					errorMsg = methods._maxSize(field, rules, i, options);
					break;
				case "min":
					errorMsg = methods._min(field, rules, i, options);
					break;
				case "length":
					errorMsg = methods._length(field, rules, i,options);
					break;
				case "confirm":
					errorMsg = methods._confirm(field, rules, i,options);
					break;
				/*case "checkusername":
					errorMsg = methods._checkusername(field, rules, i,options);
					break;*/
				case "max":
					errorMsg = methods._max(field, rules, i, options);
					break;
				case "past":
					errorMsg = methods._past(field, rules, i, options);
					break;
				case "future":
					errorMsg = methods._future(field, rules, i, options);
					break;
				case "maxCheckbox":
					errorMsg = methods._maxCheckbox(field, rules, i, options);
					field = $($("input[name='" + fieldName + "']"));
					break;
				case "minCheckbox":
					errorMsg = methods._minCheckbox(field, rules, i, options);
					field = $($("input[name='" + fieldName + "']"));
					break;
				case "equals":
					errorMsg = methods._equals(field, rules, i, options);
					break;
				case "funcCall":
					errorMsg = methods._funcCall(field, rules, i, options);
					break;

				default:
					// $.error("jQueryValidator rule not found"+rules[i]);
				}

				if (errorMsg !== undefined) {
					promptText += errorMsg + "<br/>";
					options.isError = true;
				}

			}
			// If the rules required is not added, an empty field is not
			// validated
			if (!required && !optional) {
				if (field.val() == "")
					options.isError = false;
			}
			// Hack for radio/checkbox group button, the validation go into the
			// first radio/checkbox of the group
			var fieldType = field.attr("type");

			if ((fieldType == "radio" || fieldType == "checkbox")
					&& $("input[name='" + fieldName + "']").size() > 1) {
				field = $($("input[name='" + fieldName
						+ "'][type!=hidden]:first"));
				options.showArrow = false;
			}

			if (!isAjaxValidator) {
				if (options.isError)
					methods._showPrompt(field, promptText, "", false, options);
				else
					methods._closePrompt(field);
			}
			return options.isError;
		},
		/**
		 * Required validation
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_required : function(field, rules, i, options) {
			switch (field.attr("type")) {
			case "text":
			case "password":
			case "textarea":
			case "file":
			default:
				if (!field.val())
					return options.allrules[rules[i]].alertText;
				break;
			case "radio":
			case "checkbox":
				var name = field.attr("name");
				if ($("input[name='" + name + "']:checked").size() === 0) {

					if ($("input[name='" + name + "']").size() === 1)
						return options.allrules[rules[i]].alertTextCheckboxe;
					else
						return options.allrules[rules[i]].alertTextCheckboxMultiple;
				}
				break;
			// required for <select>
			case "select-one":
				// added by paul@kinetek.net for select boxes, Thank you
				if (!field.val())
					return options.allrules[rules[i]].alertText;
				break;
			case "select-multiple":
				// added by paul@kinetek.net for select boxes, Thank you
				if (!field.find("option:selected").val())
					return options.allrules[rules[i]].alertText;
				break;
			}
		},
		/**
		 * Validate Regex rules
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_customRegex : function(field, rules, i, options) {
			var customRule = rules[i + 1];
			var rule = options.allrules[customRule];
			if (rule === undefined) {
				alert("jqv:custom rule not found " + customRule);
				return;
			}

			var ex = rule.regex;
			if (ex === undefined) {
				alert("jqv:custom regex not found " + customRule);
				return;
			}
			var pattern = new RegExp(ex);

			if (!pattern.test(field.attr('value')))
				return options.allrules[customRule].alertText;
		},
		/**
		 * Validate custom function outside of the engine scope
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_funcCall : function(field, rules, i, options) {
			var functionName = rules[i + 1];
			var fn = window[functionName];
			if (typeof (fn) === 'function')
				return fn(field, rules, i, options);

		},
		/**
		 * Field match
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_equals : function(field, rules, i, options) {
			var equalsField = rules[i + 1];

			if (field.attr('value') != $("#" + equalsField).attr('value'))
				return options.allrules.equals.alertText;
		},
		/**
		 * Check the maximum size (in characters)
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_maxSize : function(field, rules, i, options) {
			var max = rules[i + 1];
			var len = field.attr('value').length;

			if (len > max) {
				var rule = options.allrules.maxSize;
				return rule.alertText + max + rule.alertText2;
			}
		},
		/**
		 * Check the minimum size (in characters)
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_minSize : function(field, rules, i, options) {
			var min = rules[i + 1];
			var len = field.attr('value').length;

			if (len < min) {
				var rule = options.allrules.minSize;
				return rule.alertText + min + rule.alertText2;
			}
		},
		/**
		 * Check number minimum value
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_min : function(field, rules, i, options) {
			var min = parseFloat(rules[i + 1]);
			var len = parseFloat(field.attr('value'));

			if (len < min) {
				var rule = options.allrules.min;
				if (rule.alertText2)
					return rule.alertText + min + rule.alertText2;
				return rule.alertText + min;
			}
		},
		/*
		 * Minh
		 */
		_length : function(field, rules, i, options ) {
			startLength = eval(rules[i+1]);
			endLength = eval(rules[i+2]);
			feildLength = $(field).attr('value').length;

			if(feildLength<startLength || feildLength>endLength){
				var rule = options.allrules.length;
				return rule.alertText + startLength + rule.alertText2 + endLength + rule.alertText3				
			}			
			
		},
		_confirm : function(field, rules, i,options) {
			confirmField = rules[i+1];
			
			if($(field).attr('value') != $("#"+confirmField).attr('value')){
				var rule = options.allrules.confirm;
				return rule.alertText;
			}
		},
		/*_checkusername : function(field, rules, i,options) {
			username = rules[i+1];			
			var rule = options.allrules.checkusername;
			$
			.ajax({
				type : "POST",
				url : "Account_preRegister_step4.action",
				cache : false,
				dataType : "json",
				data : "uName="+$("#"+username).attr('value'),
				field : field,
				rule : rule,
				methods : methods,
				options : options,				
				error : function(data, transport) {
					methods._ajaxError(data, transport);
				},
				success : function(json) {

					if(json.checkUsername==false){			
						
						
					}
					
					// asynchronously called on success, data is the
					// json answer from the server
					var errorFieldId = json[0];
					var errorField = $($("#" + errorFieldId)[0]);
					// make sure we found the element
					if (errorField.length == 1) {

						var status = json[1];

						if (status === false) {
							// Houston we got a problem
							options.ajaxValidCache[errorFieldId] = false;
							options.isError = true;
							var promptText = rule.alertText;
							methods._showPrompt(errorField,
									promptText, "", true, options);
						} else {
							if (options.ajaxValidCache[errorFieldId] !== undefined)
								options.ajaxValidCache[errorFieldId] = true;

							// see if we should display a green
							// prompt
							var alertTextOk = rule.alertTextOk;
							if (alertTextOk)
								methods._showPrompt(errorField,
										alertTextOk, "pass", true,
										options);
							else
								methods._closePrompt(errorField);
						}
					}
				}
			});			
		},*/
		/**
		 * Check number maximum value
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_max : function(field, rules, i, options) {
			var max = parseFloat(rules[i + 1]);
			var len = parseFloat(field.attr('value'));

			if (len > max) {
				var rule = options.allrules.max;
				if (rule.alertText2)
					return rule.alertText + max + rule.alertText2;
				// orefalo: to review, also do the translations
				return rule.alertText + max;
			}
		},
		/**
		 * Checks date is in the past
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_past : function(field, rules, i, options) {

			var p = rules[i + 1];
			var pdate = (p.toLowerCase() == "now") ? new Date() : methods
					._parseDate(p);
			var vdate = methods._parseDate(field.attr('value'));

			if (vdate > pdate) {
				var rule = options.allrules.past;
				if (rule.alertText2)
					return rule.alertText + methods._dateToString(pdate)
							+ rule.alertText2;
				return rule.alertText + methods._dateToString(pdate);
			}
		},
		/**
		 * Checks date is in the past
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_future : function(field, rules, i, options) {

			var p = rules[i + 1];
			var pdate = (p.toLowerCase() == "now") ? new Date() : methods
					._parseDate(p);
			var vdate = methods._parseDate(field.attr('value'));

			if (vdate < pdate) {
				var rule = options.allrules.future;
				if (rule.alertText2)
					return rule.alertText + methods._dateToString(pdate)
							+ rule.alertText2;
				return rule.alertText + methods._dateToString(pdate);
			}
		},
		/**
		 * Max number of checkbox selected
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_maxCheckbox : function(field, rules, i, options) {

			var nbCheck = rules[i + 1];
			var groupname = field.attr("name");
			var groupSize = $("input[name='" + groupname + "']:checked").size();
			if (groupSize > nbCheck) {
				options.showArrow = false;
				return options.allrules.maxCheckbox.alertText;
			}
		},
		/**
		 * Min number of checkbox selected
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return an error string if validation failed
		 */
		_minCheckbox : function(field, rules, i, options) {

			var nbCheck = rules[i + 1];
			var groupname = field.attr("name");
			var groupSize = $("input[name='" + groupname + "']:checked").size();
			if (groupSize < nbCheck) {
				options.showArrow = false;
				return options.allrules.minCheckbox.alertText + " " + nbCheck
						+ " " + options.allrules.minCheckbox.alertText2;
			}
		},
		/**
		 * Ajax field validation
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {Array[String]}
		 *            rules
		 * @param {int}
		 *            i rules index
		 * @param {Map}
		 *            user options
		 * @return nothing! the ajax validator handles the prompts itself
		 */
		_ajax : function(field, rules, i, options) {

			var errorSelector = rules[i + 1];
			var rule = options.allrules[errorSelector];
			var extraData = rule.extraData;
			return rule.url;
			
			if (!extraData)
				extraData = "";

			if (!options.isError) {
				$
						.ajax({
							type : "GET",
							url : rule.url,
							cache : false,
							dataType : "json",
							data : "fieldId=" + field.attr("id")
									+ "&fieldValue=" + field.attr("value")
									+ "&extraData=" + extraData,
							field : field,
							rule : rule,
							methods : methods,
							options : options,
							beforeSend : function() {
								// build the loading prompt
								var loadingText = rule.alertTextLoad;
								if (loadingText)
									methods._showPrompt(field, loadingText,
											"load", true, options);
							},
							error : function(data, transport) {
								methods._ajaxError(data, transport);
							},
							success : function(json) {

								// asynchronously called on success, data is the
								// json answer from the server
								var errorFieldId = json[0];
								var errorField = $($("#" + errorFieldId)[0]);
								// make sure we found the element
								if (errorField.length == 1) {

									var status = json[1];

									if (status === false) {
										// Houston we got a problem
										options.ajaxValidCache[errorFieldId] = false;
										options.isError = true;
										var promptText = rule.alertText;
										methods._showPrompt(errorField,
												promptText, "", true, options);
									} else {
										if (options.ajaxValidCache[errorFieldId] !== undefined)
											options.ajaxValidCache[errorFieldId] = true;

										// see if we should display a green
										// prompt
										var alertTextOk = rule.alertTextOk;
										if (alertTextOk)
											methods._showPrompt(errorField,
													alertTextOk, "pass", true,
													options);
										else
											methods._closePrompt(errorField);
									}
								}
							}
						});
			}
		},
		/**
		 * Common method to handle ajax errors
		 * 
		 * @param {Object}
		 *            data
		 * @param {Object}
		 *            transport
		 */
		_ajaxError : function(data, transport) {
			if (data.status === 0 && transport === null)
				alert("The page is not served from a server! ajax call failed");
			else if (console)
				console.log("Ajax error: " + data.status + " " + transport);
		},
		/**
		 * date -> string
		 * 
		 * @param {Object}
		 *            date
		 */
		_dateToString : function(date) {

			return date.getFullYear() + "-" + (date.getMonth() + 1) + "-"
					+ date.getDate();
		},
		/**
		 * Parses an ISO date
		 * 
		 * @param {String}
		 *            d
		 */
		_parseDate : function(d) {

			var dateParts = d.split("-");
			if (dateParts !== d)
				dateParts = d.split("/");
			return new Date(dateParts[0], (dateParts[1] - 1), dateParts[2]);
		},
		/**
		 * Builds or updates a prompt with the given information
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {String}
		 *            promptText html text to display type
		 * @param {String}
		 *            type the type of bubble: 'pass' (green), 'load' (black)
		 *            anything else (red)
		 * @param {boolean}
		 *            ajaxed - use to mark fields than being validated with ajax
		 * @param {Map}
		 *            options user options
		 */
		_showPrompt : function(field, promptText, type, ajaxed, options) {
			var prompt = methods._getPrompt(field);
			if (prompt)
				methods._updatePrompt(field, prompt, promptText, type, ajaxed,
						options);
			else
				methods._buildPrompt(field, promptText, type, ajaxed, options);
		},
		/**
		 * Builds and shades a prompt for the given field.
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {String}
		 *            promptText html text to display type
		 * @param {String}
		 *            type the type of bubble: 'pass' (green), 'load' (black)
		 *            anything else (red)
		 * @param {boolean}
		 *            ajaxed - use to mark fields than being validated with ajax
		 * @param {Map}
		 *            options user options
		 */
		_buildPrompt : function(field, promptText, type, ajaxed, options) {

			// create the prompt
			var prompt = $('<div>');
			prompt.addClass(methods._getClassName(field.attr("id"))
					+ "formError");
			// add a class name to identify the parent form of the prompt
			if (field.is(":input"))
				prompt.addClass("parentForm"
						+ methods._getClassName(field.parents('form')
								.attr("id")));
			prompt.addClass("formError");

			switch (type) {
			case "pass":
				prompt.addClass("greenPopup");
				break;
			case "load":
				prompt.addClass("blackPopup");
			}
			if (ajaxed)
				prompt.addClass("ajaxed");

			// create the prompt content
			var promptContent = $('<div>').addClass("formErrorContent").html(
					promptText).appendTo(prompt);
			// create the css arrow pointing at the field
			// note that there is no triangle on max-checkbox and radio
			if (options.showArrow) {
				var arrow = $('<div>').addClass("formErrorArrow");

				switch (options.promptPosition) {
				case "bottomLeft":
				case "bottomRight":
					prompt.find(".formErrorContent").before(arrow);
					arrow
							.addClass("formErrorArrowBottom")
							.html(
									'<div class="line1"><!-- --></div><div class="line2"><!-- --></div><div class="line3"><!-- --></div><div class="line4"><!-- --></div><div class="line5"><!-- --></div><div class="line6"><!-- --></div><div class="line7"><!-- --></div><div class="line8"><!-- --></div><div class="line9"><!-- --></div><div class="line10"><!-- --></div>');
					break;
				case "topLeft":
				case "topRight":
					arrow
							.html('<div class="line10"><!-- --></div><div class="line9"><!-- --></div><div class="line8"><!-- --></div><div class="line7"><!-- --></div><div class="line6"><!-- --></div><div class="line5"><!-- --></div><div class="line4"><!-- --></div><div class="line3"><!-- --></div><div class="line2"><!-- --></div><div class="line1"><!-- --></div>');
					prompt.append(arrow);
					break;
				}
			}

			// Cedric: Needed if a container is in position:relative
			// insert prompt in the form or in the overflown container?
			if (options.isOverflown)
				field.before(prompt);
			else
				$("body").append(prompt);

			var pos = methods._calculatePosition(field, prompt, options);
			prompt.css({
				"top" : pos.callerTopPosition,
				"left" : pos.callerleftPosition,
				"marginTop" : pos.marginTopSize,
				"opacity" : 0
			});

			return prompt.animate({
				"opacity" : 0.87
			});

		},
		/**
		 * Updates the prompt text field - the field for which the prompt
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {String}
		 *            promptText html text to display type
		 * @param {String}
		 *            type the type of bubble: 'pass' (green), 'load' (black)
		 *            anything else (red)
		 * @param {boolean}
		 *            ajaxed - use to mark fields than being validated with ajax
		 * @param {Map}
		 *            options user options
		 */
		_updatePrompt : function(field, prompt, promptText, type, ajaxed,
				options) {

			if (prompt) {
				if (type == "pass")
					prompt.addClass("greenPopup");
				else
					prompt.removeClass("greenPopup");

				if (type == "load")
					prompt.addClass("blackPopup");
				else
					prompt.removeClass("blackPopup");

				if (ajaxed)
					prompt.addClass("ajaxed");
				else
					prompt.removeClass("ajaxed");

				prompt.find(".formErrorContent").html(promptText);

				var pos = methods._calculatePosition(field, prompt, options);
				prompt.animate({
					"top" : pos.callerTopPosition,
					"marginTop" : pos.marginTopSize
				});
			}
		},
		/**
		 * Closes the prompt associated with the given field
		 * 
		 * @param {jqObject}
		 *            field
		 */
		_closePrompt : function(field) {

			var prompt = methods._getPrompt(field);
			if (prompt)
				prompt.fadeTo("fast", 0, function() {
					prompt.remove();
				});
		},
		closePrompt : function(field) {
			return methods._closePrompt(field);
		},
		/**
		 * Returns the error prompt matching the field if any
		 * 
		 * @param {jqObject}
		 *            field
		 * @return undefined or the error prompt (jqObject)
		 */
		_getPrompt : function(field) {

			var className = "." + methods._getClassName(field.attr("id"))
					+ "formError";
			var match = $(className)[0];
			if (match)
				return $(match);
		},
		/**
		 * Calculates prompt position
		 * 
		 * @param {jqObject}
		 *            field
		 * @param {jqObject}
		 *            the prompt
		 * @param {Map}
		 *            options
		 * @return positions
		 */
		_calculatePosition : function(field, promptElmt, options) {

			var promptTopPosition, promptleftPosition, marginTopSize;
			var fieldWidth = field.width();
			var promptHeight = promptElmt.height();

			var overflow = options.isOverflown;
			if (overflow) {
				// is the form contained in an overflown container?
				promptTopPosition = promptleftPosition = 0;
				// compensation for the arrow
				marginTopSize = -promptHeight;
			} else {
				var offset = field.offset();
				promptTopPosition = offset.top;
				promptleftPosition = offset.left;
				marginTopSize = 0;
			}

			switch (options.promptPosition) {

			default:
			case "topRight":
				if (overflow)
					// Is the form contained in an overflown container?
					promptleftPosition += fieldWidth - 30;
				else {
					promptleftPosition += fieldWidth - 30;
					promptTopPosition += -promptHeight;
				}
				break;
			case "topLeft":
				promptTopPosition += -promptHeight - 10;
				break;
			case "centerRight":
				promptleftPosition += fieldWidth + 13;
				break;
			case "bottomLeft":
				promptTopPosition = promptTopPosition + field.height() + 15;
				break;
			case "bottomRight":
				promptleftPosition += fieldWidth - 30;
				promptTopPosition += field.height() + 5;
			}

			return {
				"callerTopPosition" : promptTopPosition + "px",
				"callerleftPosition" : promptleftPosition + "px",
				"marginTopSize" : marginTopSize + "px"
			};
		},
		/**
		 * Saves the user options and variables in the form.data
		 * 
		 * @param {jqObject}
		 *            form - the form where the user option should be saved
		 * @param {Map}
		 *            options - the user options
		 * @return the user options (extended from the defaults)
		 */
		_saveOptions : function(form, options) {

			// is there a language localisation ?
			if ($.validationEngineLanguage)
				var allRules = $.validationEngineLanguage.allRules;
			else
				$
						.error("jQuery.validationEngine rules are not loaded, plz add localization files to the page");

			var userOptions = $.extend({

				// Name of the event triggering field validation
				validationEventTrigger : "blur",
				// Automatically scroll viewport to the first error
				scroll : true,
				// Opening box position, possible locations are: topLeft,
				// topRight, bottomLeft, centerRight, bottomRight
				promptPosition : "topRight",
				bindMethod : "bind",

				// if set to true, the form data is sent asynchronously via ajax
				// to the form.action url (get)
				ajaxFormValidation : false,
				// Ajax form validation callback method: boolean
				// onComplete(form, status, errors, options)
				// retuns false if the form.submit event needs to be canceled.
				onAjaxFormComplete : $.noop,
				// called right before the ajax call, may return false to cancel
				onBeforeAjaxFormValidation : $.noop,
				// Stops form from submitting and execute function assiciated
				// with it
				onValidationComplete : false,

				// Used when the form is displayed within a scrolling DIV
				isOverflown : false,
				overflownDIV : "",

				// --- Internals DO NOT TOUCH or OVERLOAD ---
				// validation rules and i18
				allrules : allRules,
				// true when form and fields are binded
				binded : false,
				// set to true, when the prompt arrow needs to be displayed
				showArrow : true,
				// did one of the validation fail ? kept global to stop further
				// ajax validations
				isError : false,
				// Caches field validation status, typically only bad status are
				// created.
				// the array is used during ajax form validation to detect
				// issues early and prevent an expensive submit
				ajaxValidCache : {}

			}, options);

			form.data('jqv', userOptions);
			return userOptions;
		},

		/**
		 * Removes forbidden characters from class name
		 * 
		 * @param {String}
		 *            className
		 */
		_getClassName : function(className) {
			return className.replace(":", "_").replace(".", "_");
		}
	};

	/**
	 * Plugin entry point. You may pass an action as a parameter or a list of
	 * options. if none, the init and attach methods are being called. Remember:
	 * if you pass options, the attached method is NOT called automatically
	 * 
	 * @param {String}
	 *            method (optional) action
	 */
	$.fn.validationEngine = function(method) {

		var form = $(this);
		if (!form[0])
			return false; // stop here if the form does not exist

		if (typeof (method) === 'string' && method.charAt(0) != '_'
				&& methods[method]) {

			// make sure init is called once
			if (method != "showPrompt" && method != "hidePrompt"
					&& method != "hide" && method != "hideAll")
				methods.init.apply(form);

			return methods[method].apply(form, Array.prototype.slice.call(
					arguments, 1));
		} else if (typeof method === 'object' || !method) {
			// default constructor with or without arguments
			methods.init.apply(form, arguments);
			return methods.attach.apply(form);
		} else {
			$.error('Method ' + method
					+ ' does not exist in jQuery.validationEngine');
		}
	};
})(jQuery);
